Yokohama, Japan

Keizi Endo

This inventor holds 1 USPTO granted patent. Top assignee: Nippon Petrochemicals Company, Limited. Active years: 1982.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Keizi Endo. Retrieved from https://idiyas.com/inventor/keizi-endo

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile


% Patents Active = 100.0

Average Co-Inventor Count = 4.0

ph-index = 1

Forward Citations = 3(Granted Patents)


Company Filing History:


Years Active: 1982

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1 patent (USPTO):Explore Patents

Title: Keizi Endo: Innovator in Oil-Impregnated Power Cable Technology

Introduction

Keizi Endo is a notable inventor based in Yokohama, Japan. He has made significant contributions to the field of electrical engineering, particularly with his innovative designs in power cable technology. His work has been recognized for its practical applications and advancements in the industry.

Latest Patents

Keizi Endo holds a patent for an oil-impregnated power cable. This invention features an insulation layer created by winding a composite film of polyolefin film and insulating paper around an electric conductor. The cable is impregnated with a specific oil that consists of distillates within a boiling range of 265°C to 360°C. This oil is derived from a hydrocarbon mixture that undergoes thermal cracking at high temperatures, resulting in a product that contains monocyclic aromatics and aromatic olefins.

Career Highlights

Endo is currently employed at Nippon Petrochemicals Company, Limited, where he continues to develop innovative solutions in the field of power cables. His expertise and dedication to research have positioned him as a key figure in his organization.

Collaborations

Some of his notable coworkers include Atushi Sato and Isoo Shimizu. Their collaborative efforts contribute to the advancement of technology within their field.

Conclusion

Keizi Endo's contributions to the development of oil-impregnated power cables highlight his innovative spirit and commitment to engineering excellence. His work continues to influence the industry and pave the way for future advancements.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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